<template>
    <div class="login_contain">
        <div class="login_box">
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <el-form ref="loginFormRefs" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
                <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
                </el-form-item>
                <!-- 按钮区域 -->
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登陆</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
  data () {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入用户密码', trigger: 'blur' },
          { min: 6, max: 18, message: '长度在 6 到 18 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginForm () {
      this.$refs.loginFormRefs.resetFields()
    },
    login () {
      this.$refs.loginFormRefs.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登陆失败')
        this.$message.success('登陆成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_contain{
    background: #2b4b8b;
    height: 100%;
}
.login_box{
    width: 450px;
    height: 300px;
    position: absolute;
    left: 50%;
    top: 50%;
    background-color: #fff;
    transform: translate(-50%, -50%);
    border-radius: 3px;
    .avatar_box{
        width: 130px;
        height: 130px;
        border-radius: 50%;
        border: 1px solid #eee;
        padding: 10px;
        overflow: hidden;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform: translate(-50%, -50%);
        background: #fff;
        img{
            width: 100%;
            height: 100%;
            background: #eee;
            border-radius: 50%;
        }
    }
    .login_form{
        position: absolute;
        bottom: 0;
        width: 90%;
        padding: 0 20px;
    }
    .btns{
        display: flex;
        justify-content: flex-end;
    }
}
</style>
